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Scientists Just Discovered That The Brain Makes Three Copies Of Every New Memory You Make
This new study suggests that how and when specific copies of memories are activated can have a huge impact on how we experience those memories, and how they change over time.
“The challenge the brain faces with memory is quite impressive,” Professor Donato stated in the press release. “On one hand, it must remember what happened in the past, to help us make sense of the world we live in. On the other, it needs to adapt to changes happening all around us, and so must our memories, to help us make appropriate choices for our future.”
If these findings also apply to humans, it could help researchers develop treatments for specific memory-related disorders like PTSD or dementia by targeting different neuron groups.
UAE unveils lander for bold 7-asteroid mission set to launch in 2028 (photos)
“We don’t know what we’re going to find — that’s exploration,” Tsoutsanis told reporters. “We’re really excited.”
According to the mission plan, the MBR Explorer will spend roughly seven months studying 269 Justitia from orbit. Beginning at an altitude of 155 miles (250 km), the spacecraft will gradually lower its path before releasing the lander. The smaller probe will then head toward the asteroid’s surface, a descent that should take two to three hours depending on 269 Justitia’s precise gravity, which remains unknown.
Although TII describes the mission ending with a landing on the surface of 269 Justitia, the engineering details suggest a more violent endgame. Cruising toward the asteroid’s surface at 15 to 27 meters per second (34 to 60 mph) with no meaningful way to slow down, the probe will function less like a traditional lander and more like a planned impactor.
Feature Information Dynamics in Diffusion
This is a beautiful analysis of the order in which diffusion models resolve uncertainty about information at different abstraction levels in different representation spaces, with significant implications for latent diffusion.
When does diffusion generate each feature in an arbitrary representation space?
Representation choice changes the generation order of diffusion models. https://arxiv.org/abs/2610.
This paper turns a familiar “vibe” about AI image generation—that pictures appear as rough structure first and crisp detail later—into something measurable.
Diffusion models start from noise and repeatedly denoise it into an image. People have long suspected they learn in a coarse-to-fine order: big shapes and colors emerge before edges, textures, and tiny details. The authors propose feature information dynamics, an information-theoretic clock that estimates *when*, during generation, a particular feature becomes informative.
The key idea is intuitive: if knowing a feature helps the model denoise much more than not knowing it, that feature is probably “coming online” at that moment. Using the I–MMSE identity, they connect the change in a feature’s mutual information to the gap between two denoising losses: the best unconditional denoiser and the best denoiser conditioned on that feature. A bigger gap means the feature is being born; a smaller gap means it is already present or not yet useful.
They also handle hierarchies of features without double-counting. In a chain like class → mask → Canny edges, some information is shared across levels—knowing “dog” already implies a blobby body—while some is genuinely incremental—edges add contour beyond the mask. Their chained decomposition separates “shared” from “new” information so the timing story is cleaner.
New sensor uses slowed light to detect gravitational pull of tiny objects
Gravity, the attraction between objects with mass, is the weakest of the four fundamental forces governing physical processes. Detecting the tiny gravitational pull of objects that are just a few millimeters in size and have a very small mass is extremely challenging.
Reliably measuring the gravitational fields of microscopic objects could open new possibilities for research and the development of new technologies. For instance, it could allow physicists to explore how gravity relates to quantum physics and develop new instruments to study tiny objects.
Researchers at Shanghai Jiao Tong University and other institutions recently developed a new sensor that can detect the gravitational pull of millimeter-sized objects. This sensor, introduced in a paper published in Nature Nanotechnology, is based on a suspended structure called a torsion pendulum and an optical microcavity, a structure that confines light.
Quantum ‘birthmarks’ hold lasting traces of a system’s past
Some classical physical systems can explore many configurations over time until their long-term behavior no longer reveals their starting conditions. The sampling of available configurations according to the appropriate statistical distribution is a property called ergodicity.
Quantum systems, which are governed by the laws of quantum mechanics, could instead retain some traces of their beginnings. In a paper published in Physical Review X, researchers at Harvard University and other institutions introduced the idea of quantum birthmarks, statistical traces of initial states and early development that persist in quantum systems that do not exchange information with their surroundings.
“The paper grew out of a simple tension in quantum chaos: classically, an ergodic system is expected to forget its initial conditions, but quantum evolution can retain traces of its past through coherence effects,” Joonas Keski-Rahkonen, senior author of the paper, told Phys.org. “We wanted to know whether this memory is a special feature of phenomena like quantum scars, where individual eigenstates break the expectation of classical-like ergodicity, or something far more general, as it turned out to be.”
There’s a SOLUTION to the space junk crisis! We need to use it NOW! COMSPOC Interview!
Right now, 93% of the potential collisions in space are not being addressed!
Just because we haven’t had a disastrous collision doesn’t mean we’re doing a good job with space junk.
But companies like COMSPOC Corporation have a solution!
#spacedebris #kesslersyndrome #starlink.
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